class Student:
    def __init__(self, name, age):
        self.name = name
        self.age = age
        
    def __le__(self, other):
        return self.age <= other.age
        
stu1 = Student("周杰伦", 11)
stu2 = Student("林俊杰", 13)

print(stu1 <= stu2)
print(stu1 >= stu2)